How to Hook Up Trailer Lights

Any trailer that is towed on the road must have lights to be legal. Installing the lights on a trailer is a perfect job for a do-it-yourself type and makes a great job for a weekend day.

Things You'll Need

  • Trailer light kit Solderless connector crimping tool Nylon wire ties Self tapping screw
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Instructions

    • 1

      Mount the taillights from the kit on the rear of the trailer with the hardware supplied in the kit. The license plate bracket will be held on by the bolts which hold the left lamp in place.

    • 2

      Separate the white wire from the multi-conductor cable supplied in the kit and allow the trailer connector to extend one foot beyond the trailer coupler. Then run the multi-conductor cable down the left side of the trailer.

    • 3

      Connect the brown wire to the taillight pigtail on both sides of the trailer. You can do this by connecting the left pigtail to the brown wire with a Scotchlok connector and then continuing the wire along the back rail of the trailer and connecting the right tail-light pigtail with a solderless butt connector.

    • 4

      Connect the green wire to the right turn/stop light pigtail using a solderless butt connector.

    • 5

      Connect the yellow wire to the left turn/stop light pigtail using a solderless butt connector.

    • 6

      Cut the white wire to 2 or 3 feet long (length really doesn't matter here). Strip about 1/4 inch of the insulation from the cut end and attach a solderless ring connector.

    • 7

      Using a self tapping screw, attach the ring terminal of the white wire to the trailer frame.

    • 8

      Secure all wiring to the trailer frame with nylon wire ties and trim of the excess wire tie.

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